Starknet Analyzes Brief Mainnet Downtime Causes
Written by Ohris M. Greyoon, Blockchain & Crypto Expert
- Cause Analysis: Starknet's report reveals that the brief mainnet downtime was due to a mismatch between the blockifier and proving layer, resulting in incorrect transaction executions without reaching Ethereum finality.
- Recovery Process: The incident led to a rollback of approximately 18 minutes of activity, requiring users to resubmit affected transactions once the chain returned to a valid state, highlighting how execution-layer bugs can disrupt L2 networks despite functioning safety checks.
- Comparison with Previous Outages: Compared to the five-hour outage in September 2025, this 18-minute rollback was shorter and followed a similar recovery pattern, underscoring reliability challenges within Starknet's multi-layer architecture.
- Future Improvement Plans: Starknet has resumed normal operations and is committed to enhancing testing around execution and revert logic to reduce the likelihood of similar issues, indicating that while its proving layer is effective, user experience optimization remains necessary.
About the author

Ohris M. Greyoon
Ohris M. Greyoon holds a Master’s in Computer Science from MIT and has 10 years of experience in blockchain technology and cryptocurrency markets. A pioneer in decentralized finance (DeFi) analysis, he leads Intellectia’s Crypto News, offering cutting-edge insights into digital assets.





